2611197389 has 2 divisors, whose sum is σ = 2611197390. Its totient is φ = 2611197388.

The previous prime is 2611197367. The next prime is 2611197401. The reversal of 2611197389 is 9837911162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1411129225 + 1200068164 = 37565^2 + 34642^2 .

It is a cyclic number.

It is not a de Polignac number, because 2611197389 - 2²⁴ = 2594420173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2611197289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1305598694 + 1305598695.

It is an arithmetic number, because the mean of its divisors is an integer number (1305598695).

Almost surely, 2^2611197389 is an apocalyptic number.

It is an amenable number.

2611197389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2611197389 is an equidigital number, since it uses as much as digits as its factorization.

2611197389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 47.

The square root of 2611197389 is about 51099.8766045477. The cubic root of 2611197389 is about 1377.0400376026.

The spelling of 2611197389 in words is "two billion, six hundred eleven million, one hundred ninety-seven thousand, three hundred eighty-nine".